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通过导向外部电场对刚性基的可逆异构

Rui Wang¹, Yingjie Li¹, Siyu Yan¹

¹Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.

Journal of the American Chemical Society

|January 11, 2025

概括

定向外部电场 (OEEF) 催化了刚性stilbene分子中的可逆 cis-trans 异构. 这一突破使得使用电场对分子机器进行精确控制,为动态分子系统铺平了道路.

科学领域:

分子化学
超分子化学
材料科学

背景情况:

控制分子构造变化对于设计响应和动态分子系统至关重要.
刚性stilbene是过度拥挤的基旋转电机的关键组成部分,需要控制其异构化的方法.

研究的目的:

调查导向外部电场 (OEEF) 作为cis-trans异构化的催化剂的潜力.
用电场操纵来证明分子异构的精确控制.
在人工分子机器的开发中探索OEEF催化反应的应用.

主要方法:

使用超高性能液体色谱 (UPLC) 和紫外线吸收光谱来验证异构化.
使用密度函数理论 (DFT) 计算来阐明反应机制.
在环境条件下应用导向外部电场 (OEEF).

主要成果:

经证实OEEF是一种可逆性cis- trans异构化的有效催化剂.
在环境条件下发生异构,没有副作用.
低电场促进了 cis-to-trans 转换,而高电场则诱导了反向的 trans-to-cis 过程.

结论:

OEEF提供了一种用于控制分子异构的新奇而精确的方法.
这种电场驱动的方法为构建可逆分子系统提供了新的视角.
这些发现为完全电动的人造分子机器铺平了道路.

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